Item and Plug-in

Item noun - A separate part in a list, account, or series.

Plug-in and item are semantically related In some cases you can use "Plug-in" instead a noun "Item".

Nearby Words: itemize, itemise, itemised

Plug-in noun - A printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities.

Item and plug-in are semantically related in part topic. You can use "Item" instead a noun phrase "Plug-in".